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A. KRAUTH.

MUSIC STAND.

APPLICATION FILED Aue.23, 1917.

Patented Aug. 5, 1919.

Lslms I am'uewkoz wi/imwms STATES PATE l FFTCE.

ALBERT KRAUTH, OF HAMILTON, OHIO; FRITZ G. DIESBACH ADMINISTRATOR F SAIDALBERT KRAUTH, DECEASED.

, IlIUSIC-STAND.

Specification of Letters Patent.

. Patented Aug. 5, 1919.

: 5. Appiication'flled iiu ust 2a, 1917. Serial No. 187,855.

To all whom z't-may concern:

Be it known that'LALnEnr Knsu'rma citizen of the United states," and'resi"d,in at Hamilton, in the county of Butler and tate of Ohio, haveinvented new and useful Improvement's. in Music-Stands, of'which thefollowing' specification is a full disclosure;

- usage where longitudinal adjustment is re-,

' firmly hold the telescopic justed position; and yet yielding under'exprovide tension My invention relates to :1. Ion 'tudinally adjustablesupport member of tel bular'strujcture adapted to be used for supporting a music rack, or to other similar quired.

a simple,-cheap and efiicie'nt structure,- with tension meansautomatically operating to members in adtra press'iireto enable thetelescopic action '0 the members.

.0116 o'f-the objects means which will automatically equalize tensionatv opposite means swivel-supported in a manner to prevent any bindingdue ffto inequality ofpressure or irregularityof position. v 'Y Otherfeatures and objects of the inveni tion are readily comprehended fromthe following description of the accompanying drawings and inthedrawings like characters of reference denote corresponding partsthroughout the severalviews of which:

Figure 1 is a plan view of the end portion of two telescoping tubesections, detached, with the endof the insert tube section provided withmy improved tension orfunction means.

tube sections telescopically engaged.

Fig. 3 is an end elevation of the insert tube section. Fig. 4 1s a sldeelevation of the same. Fig. 5 is an elevation of the end of the inserttube section modified and providing two fied form of tension devices.

F'ig. 8 is a sectional view of the end of a tube with another modifiedform of tension devices.

The inner tube member 1 telescopically escopic tugreater than t jpressible into the tube diameter. is to provide tension tube and sidesof the tube; and to .ing member, enablin easily inserted into t e inFig. 2, that is to say,

Figi'7 is a partly sectional view of a'modiabove the other,

enters the outer tube member 2, the fit being snug, and yet enablingfree telescopic action; It lssnot essential that both members hehollow,or tubular, or that the cross section be circular, though theinvention has mostadvantageous application to the telescoping tubespecies. I i

The tension member is carried in theend of the inner tube, and the tubeendmay be cut out at each side full length of the tension member, as at3, Fig. 4, orthe cut out portions may be along the lower or limb por- II tions ofthe tension members, as shown at 4, The object of theinventionis to provide F1 6. i The tension member 5 consists ofresilient wire looped at an form a swivel eye 6, and the divergingspring limbs 7, normally spreading apart a distance 'diametrical pivot 8is secured in the extending transversely'to the orifice 3 or 4, thelimbs 7 extending outwardly through these diametrically disposedorifices or slots in-the oppositewalls of the tube.

' In this simplest form, (Fig. 1), the tubes are ready to be telescoped,and the tension limbs 7 point-away from the inner tube to be outer tubeas, shown the limbs diverging from the eye in the direction in which thetelescope is extensible.

' The limbs 7 or portions of them extend "outwardly through theseorifices or slots 3, and frictlonally engage the inner surface of theouter tube to impose friction at o 1 posite diametrical 1portions ofthis outer tube. Fig. 2 is a view partly in section of the two wherebythe tension is equalized and binding The loop enab es the swivelmounting this enables the use of can loosely fit on the 1s prevented.Also, resilient wire which pivot and requires no close fitting ormachinto be most easily telescoped and adjusted,

and yet rovides a sufficiently forcible friction loci? to adapt thestructure to light usage such as sustaining a music rack at the desiredheight without slipping.

If desired, two such tension members may be provided in the end of thenear tube, one and arranged preferably in transverse planes as shown inFig. 5, in

e tube diameter, but com the outer telescopintermediate portion to whichevent, of course,

being out of the tube.

It is easy to telescope the tubes because of the swivel tension supportand because of divergence.

the convergence toward the swivel in the direction of insertion.

Telescoping action is slightly easier than when the movement is-in thedirection of This telescoping device is cheap, strong, easily made, andreliable. The equalization of tension renders the operation smooth, andyet positive at all times, and there are no parts to get out ofadjustment, or weak elements likely to be easily broken.

In the modification, Fig. 8, the tube 1 is' slitted at opposite sides toforms. pair of tongues 1212, retaining the metal which is cut away informing the notches in the tube of the several other forms shown. Eachtongue 12 is bent outwardly. A tension member 5 is interposed betweenthe tongues and within the 7 respectively fixed to ton ues.

aving described my invention, 1 claim: 1. A device of the classdescribed comprising longitudinally adjustable telescopin members, atension device having one en swivel-connected to the inner telescopingthe free ends of the member and having diverging compressible limbsprojecting from opposite sides of the 'having compressible tube havingits spring limbs.

inner telescoping member and frictionally engaging interior surfaces ofthe outer telescoping member.

2. A device of the class described comprising an outer and innertelescopin tube, the inner tube having diametrical s ots and atransverse pivot, a resilient wire intermediately looped to form an eyeswiveled on said pivot and providing diverging compressible limbs,portions of which project through said slots for frictionally engagingportions of the outer tube.

3. A device of the class described comprising telescoping tubes, theinner tube being formed with diametrical slots and a transverse pivot, atension member on the pivot limbs normally projecting through saidslots.

4. A device of the class described comprising telescoping tubes, theinner tube being. formed with diametrical slots and a tension memberpivoted within the inner tube and having compressible portionsprojecting through said slots. 5. A device of the class describedcomprising a pair of tubes telescopically united, and

a piece ofwire bent to ,form a coil and two oppositely diverging limbscompressible toward each other, pivotally secured at the coil within theinner tube of the pair with said limbs engaged through openings in saidinner tube and frictionally bearing against the outer tube.

In witness whereof, I hereunto subscribe my name, as attested by the twosubscribing witnesses.

. ALBERT KRAUTH.

Witnesses: n

no. W. MCGILLIARD, LLA CLENDENIN.

